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How do I add Silverlight to Firefox?

Author

Mia Phillips

Updated on February 24, 2026

How do I add Silverlight to Firefox?

Install & Enable Silverlight in Firefox
  1. Click the Tools drop down menu and select Add-ons. This will open the Mozilla Firefox Add-ons Manager.
  2. Select Add-ons.
  3. Choose Plugins.
  4. Locate the Silverlight plugin.
  5. If it's disabled, click Always Activate.

Also asked, is Silverlight compatible with Firefox?

Microsoft Silverlight is a free web-browser plug-in that enables interactive media experiences, rich business applications and immersive mobile apps. Silverlight works on all major OS's plus all major browsers, including Firefox, Google Chrome, Safari, and yes, Internet Explorer.

Secondly, how do I set up Silverlight? Install & Enable Silverlight in Internet Explorer

  1. Press the Alt key on your keyboard.
  2. Click the Tools menu at the top of the browser window.
  3. Select Manage add-ons.
  4. Choose Toolbars and Extensions from Add-on Types.
  5. Select All Add-ons from the dropdown menu.
  6. Click on Microsoft Silverlight.
  7. If disabled, click Enable.

Likewise, what version of Firefox works with Silverlight?

Chosen solution

The last version of Firefox that runs Silverlight is the Extended Support Release of Firefox 52 (52.9. 0esr, I think). This article has the link to the server with old versions: Install an older version of Firefox. Another option is to use Internet Explorer 11 for Silverlight applications.

How do I install an addon in Firefox?

  1. Firefox may offer personalized recommendations. Click the menu button , click Add-ons and select Recommendations.
  2. To install a recommended add-on, click the blue + Install Theme or + Add to Firefox button, depending on the type of add-on.

What browsers still support Silverlight?

Microsoft Silverlight will reach the end of support on October 12, 2021. Silverlight development framework is currently only supported on Internet Explorer 10 and Internet Explorer 11, with support for Internet Explorer 10 ending on January 31, 2020.

How do I enable plugins in Firefox?

To enable plugins
  1. Click the Firefox menu icon. in the upper right of the browser toolbar.
  2. Choose Add-ons.
  3. From the left navigation pane, choose Plugins.
  4. Choose Always Activate or Ask to Activate for each plugin, as needed.

How do I enable Silverlight in Chrome?

How to enable Microsoft Silverlight in Chrome (version 42 or later)
  1. Type “chrome://flags/#enable-npapi” in browser.
  2. Scroll down to find Enable NPAPI.
  3. Select “Enable”

Where can I download Silverlight for Mac?

How do I install Silverlight on my Mac?
  • For Safari, the Downloads page is in the upper right corner of the browser.
  • For Firefox, the Downloads page is a separate window located in the Dock.
  • For Chrome, the Downloads page is under the Window drop-down in the upper left corner of your browser.

How do I test if Silverlight is working?

How Can I Test That Silverlight Is Working?
  1. Open a Web browser supported by Silverlight, such as Internet Explorer, Firefox or Chrome.
  2. Visit the Silverlight Project Test Page.
  3. Watch the page. If it loads a Silverlight application, then Silverlight is working properly on your computer.

Does Windows 10 need Silverlight?

Thanks for your feedback. Its not a requirement to have it installed, but, some web pages utilize it for streaming multimedia content. Silverlight is Microsoft's competitive answer to Adobe's Flash, the long-standing dominant standard for multimedia Web applications.

How can I tell if Silverlight is installed?

How do I check if Silverlight is installed?
  1. Press windows key + R together on your keyboard and type in "control appwiz.cpl" and click ok.
  2. Check if you have Microsoft Silverlight appearing in the list.
  3. If its not listed then you need to install Silverlight from the link below and follow the steps from the link.

What is Silverlight used for?

recently announced Silverlight, a cross-platform, cross-browser plug-in for Web application developers. The plug-in, currently available as a Release Candidate (which for all intents and purposes means it's released now), enables rich application development including media, interactivity and animation.

Can you use Silverlight on Chrome?

In the newest release of Google Chrome (v42), you can still use Silverlight but you have to explicitly enable it.

How do I get Silverlight to work on Safari?

Enable
  1. Open Safari.
  2. Click on "Safari" in the menu bar and go to "Preferences".
  3. Click on the "Security" tab.
  4. Locate Internet Plug-ins and click on the "Manage Website Settings" button to the right.
  5. Click on the Silverlight Plug-in on the left.
  6. Set to "Allow Always".

How do I fix Microsoft Silverlight?

Troubleshooting Microsoft Silverlight
  1. Scroll down to the "Resolution" section and select the "Microsoft Fix It" button.
  2. Save this file to your computer and run it.
  3. Press "Next" on the window and the program will scan for any issues and automatically remove the broken copy of Silverlight.
  4. After removal, you will be prompted to reinstall Silverlight.

Does Silverlight require a reboot?

Restart requirement

You do not have to restart your computer to complete this installation.

Does Silverlight work on Safari?

This article posted on apple site informs: As of today, no actively supported web browser on macOS can run the current Silverlight plugin (neither Safari, Chrome nor Firefox, see below for more information).

How do I add an extension to Firefox toolbar?

If you want to add an extension icon to the toolbar, locate its icon in the list area and drag it into the toolbar. When you're satisfied with your toolbar layout, click “Done,” and the “Customize Firefox” tab will close. Your changes will be saved.

Where are Firefox addons installed?

Chosen solution

Most add-on data is stored in a folder in the Firefox user profile. However, some information is stored in the profile folder also. It's possible that there is a problem with the file(s) that store the extensions registry. Type about:support in the address bar and press enter.

Where are add ons in Firefox?

I would go to Tools > Add-ons and see if there are any options for the add-ons. Some add-ons will display in the Tools menu as well.

Why can't I download extensions on Firefox?

Corrupt extension files

Corrupt extension configuration files can cause problems when trying to install an extension. Deleting these files will make Firefox recreate them (removing any corruption) the next time it starts. You won't lose your extensions or their settings by deleting these files.

Is Chrome better than Firefox?

1. Firefox Is Faster and Leaner Than Chrome. Everything changed with the release of Firefox 57, also known as Firefox Quantum. At its debut, Mozilla claimed that Firefox Quantum ran twice as fast as the previous version of Firefox, while requiring 30 percent less RAM than Chrome.

Why are my addons failing to install?

Many Kodi dependency errors can easily be fixed by clearing the Kodi cache. This is very easy to do on most streaming boxes as indicated below. Go into Fire TV Settings / Applications / Manage Installed Applications / Kodi / and click Clear Cache. Go into Android Box Settings / Apps / Kodi / and click Clear Cache.

Can you add extensions to Firefox Mobile?

We looked at add-on usage on Android, and made the decision to start by building support for add-ons in the Recommended Extensions program that were commonly installed by our mobile users.

What happened to Firefox addons?

In October 2018, all legacy add-ons were disabled on addons.mozilla.org (AMO). Users will no longer be able to find legacy add-ons on AMO. If you decide to run unsupported releases to use legacy add-ons, this will make you vulnerable to security weaknesses and we strongly do not recommend that they be used.

How do I install Chrome extensions in Firefox 2020?

Open Firefox browser and open the link for installing Chrome Store Foxified addon. Once you open the link, install the addon just like you would install any other addon. Once you have installed the addon, open the Chrome extension page that you want to install in Firefox.

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